Underclub
Petite Frites is a direct-to-consumer fine jewelry brand selling customizable lab-grown diamond rings, earrings, necklaces, and bracelets priced $2,200-$20,000 to women celebrating non-traditional life milestones through its Shopify e-commerce store.
- Company typePrivate
- Founded2014
- HeadquartersSan Francisco, United States
- Headcount1–10
- GTM typeB2C
- OfferingHardware or Manufacturing
What Underclub does
Petite Frites is a direct-to-consumer fine jewelry brand operating exclusively through a Shopify-based e-commerce storefront, selling customizable lab-grown diamond rings, earrings, necklaces, and bracelets set in solid 14K and 18K gold (yellow and white) with hand-poured enamel accents. The brand's signature technical differentiator is an interchangeable tennis bracelet clasp system in which every bracelet pairs with every visible clasp, enabling stacking, restyling, and modular composition; this is paired with custom-made-to-order production on a 4-6 week lead time and bespoke enamel color requests handled via email. Products use carbon-neutral lab-grown diamonds (FG color, VS clarity) and SCS-Certified Recycled Gold, and pricing ranges from approximately $2,200 (Champagne Necklace) to $20,000 (Happy Hour Necklace).
The company was founded by childhood friends and co-founders Katie Fritts and Jackie Little to serve women celebrating non-traditional personal milestones (job quits, egg freezing, divorces, marathon finishes, degree completions, business launches), explicitly rejecting the engagement-and-wedding narrative that dominates fine jewelry marketing. The go-to-market is pure DTC with no wholesale, marketplace, or physical retail presence; international shipping is offered, and customer acquisition is driven through owned content channels including The Bistro blog and the THE DIGEST email newsletter. The team size is reported at 1-10 employees and no external funding, partnerships, or M&A activity are disclosed, indicating a bootstrapped, founder-operated model.
Underclub firmographics
Firmographics- Name
- Underclub
- Legal name
- Petite Frites
- Website
- https://underclub.com
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Petite Frites is a direct-to-consumer fine jewelry brand selling customizable lab-grown diamond rings, earrings, necklaces, and bracelets priced $2,200-$20,000 to women celebrating non-traditional life milestones through its Shopify e-commerce store.
- Ownership category
- akta.pro rank
Underclub industry classification
Industry- Product category
- Fine Jewelry (Lab-Grown Diamond Jewelry)
- NAICS
- Jewelry Retailers (458310)
- SIC
- Retail-Jewelry Stores (5944)
- akta.pro primary industry
- Jewelry, Watches & Luxury Omnichannel (CRAFAEAH)
- akta.pro secondary industry
- Fine Jewelry Retail (Precious Metals & Gemstones) (CRAKAGAA)
Keywords
Where Underclub is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Markets served
Underclub business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Direct Jewelry Sales: The primary revenue stream is direct-to-consumer sales of fine diamond jewelry through the e-commerce storefront. Products include rings, earrings, necklaces, and bracelets in 14K and 18K gold with lab-grown diamonds and customizable enamel. Pricing ranges from approximately $2,200 to $20,000 per piece. All pieces are custom-made to order with a 4-6 week production timeline.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Entry-level pieces including earrings and rings starting from $2,200 |
| One time/ perpetual license | Pay-as-you-go | Mid-tier statement pieces including bracelets from $9,500 to $11,250 |
| One time/ perpetual license | Pay-as-you-go | Premium pieces including necklaces up to $20,000 |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Underclub product offering
Product offeringCore offering
Underclub (operating as Petite Frites) operates a direct-to-consumer fine jewelry e-commerce brand built around lab-grown diamond jewelry crafted in solid 14K and 18K gold. The catalog spans rings, earrings, necklaces, and an interchangeable tennis bracelet line with hand-poured customizable enamel clasps; all pieces are custom-made to order with a 4-6 week production timeline and priced from approximately $2,200 to $20,000. The company sells exclusively through its own Shopify-based online storefront with no disclosed physical retail, wholesale, or third-party marketplace presence.
Product overview
Petite Frites is a fine jewelry brand specializing in lab-grown diamond jewelry that celebrates non-traditional milestones and life achievements. The core product is a unified collection of rings, earrings, necklaces, and tennis bracelets featuring carbon-neutral lab-grown diamonds (FG color, VS clarity) set in solid 18K gold. The portfolio centers on interchangeable tennis bracelets with customizable enamel clasps (Tennis With a Twist system), paired with complementary rings (Paloma Ring, With A Twist Ring, Cigar Band Ring, Champagne Ring, Kir Royale Ring), earrings (Evening Out, On The Rocks, Candlelight, Dinner Mint), and necklaces (Champagne Necklace, Happy Hour Necklace). Products are customizable with hand-poured enamel in various colors, and all pieces are made to order with a 4-6 week production timeline.
Differentiator
Problem solved
Functional benefit
Brands
- The Bistro: Virtual tabletop of stories, news, interviews, and notable nuggets shared by the company - their blog/newsletter platform.
Products and services
- Petite Frites Lab-Grown Diamond Jewelry Collection Core jewelry collection of fine rings, earrings, necklaces, and tennis bracelets set in solid 14K and 18K gold with carbon-neutral lab-grown diamonds (FG color, VS clarity), offered to individual consumers through the direct-to-consumer e-commerce storefront.
- Tennis Bracelets Interchangeable tennis bracelets with a visible clasp design in which every bracelet pairs with every clasp, allowing customers to style, change, update, and stack pieces according to preference; available in round prong set, bezel set, and various clasp styles in 14K and 18K gold with lab-grown diamonds.
- Perfect Pairing: The Boisson Bracelet 18K white gold tennis bracelet with lab-grown diamonds paired with the Martini Clasp in black enamel; starting price $11,250.
- Perfect Pairing: The Bonbon Bracelet 18K yellow gold round prong set tennis bracelet with diamond clasp; starting price $9,500.
- Perfect Pairing: The Perlage Bracelet Round bezel set tennis bracelet with lab-grown diamond clasp in yellow gold.
- Evening Out Earrings Diamond earrings in 18K yellow or white gold with lab-grown diamonds; starting price $5,500.
- On The Rocks Studs Diamond stud earrings in 18K white gold with lab-grown diamonds; starting price $4,400.
- Candlelight Earrings Diamond huggie earrings in 18K white gold with lab-grown diamonds; starting price $3,400.
- Dinner Mint Earrings (Diamond) Round diamond stud earrings in 18K white gold with lab-grown diamonds; starting price $4,000.
- Paloma Ring Diamond ring in 18K white gold with lab-grown diamonds; starting price $3,500.
- With A Twist Ring (Diamond) Diamond ring available in 18K yellow gold and white gold with lab-grown diamonds; starting price $9,800.
- Cigar Band Ring (Diamond) Cigar band style diamond ring in 18K yellow gold with lab-grown diamonds; starting price $6,500.
- Champagne Ring Diamond ring with customizable hand-poured enamel available in Azure Blue, Hunter Green, and Midnight; starting price $2,750.
- Kir Royale Ring Diamond ring in 18K yellow gold with custom enamel accents; pricing varies.
- Champagne Necklace V-shape necklace with customizable hand-poured enamel in Hunter Green and Midnight color options; starting price $2,200.
- Happy Hour Necklace Premium diamond necklace in 18K white gold with lab-grown diamonds; starting price $20,000 (highest-priced piece in the catalog).
Quantifiable outcome
- Carbon-neutral diamond production and SCS-Certified Recycled Gold sourcing
Companies that use Underclub
Customer profileSegments1 record
Ideal customer profiles1 record
Underclub technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Underclub partnerships and signals
Strategic signalScale indicators1 record
Recent moves5 records
Expansion highlights5 records
Underclub competitors and assessment
Company assessmentDirect peers
- Catbird: Catbird is an independent fine jewelry retailer with curated gold and diamond pieces, D2C and own-store; comparable niche positioning, premium pricing, and brand-led storytelling approach.
- Mejuri: Mejuri is a leading fine jewelry DTC brand targeting modern women across self-purchasing and gifting occasions; directly comparable on premium DTC positioning and milestone-based marketing.
- Stone and Strand: Stone and Strand is an independent fine jewelry DTC brand targeting modern female buyers; comparable on design-led positioning, self-purchase framing, and digital-first go-to-market.
- VRAI: VRAI is the direct-to-consumer lab-grown diamond jewelry brand operated by Diamond Foundry; offers engagement and fine jewelry DTC, comparable to Petite Frites' lab-grown positioning and omnichannel model.
- Brilliant Earth: Brilliant Earth is an ethical and lab-grown diamond fine jewelry retailer operating omnichannel; serves the same ethically-minded buyer and overlaps on lab-grown diamond product lines and certification messaging.
- Grown Brilliance: Grown Brilliance is a lab-grown diamond fine jewelry DTC retailer; directly comparable on lab-grown certification, premium pricing, and ethical-sourcing messaging.
Emerging players
- Auvere: Auvere is a fine jewelry brand selling solid 22K and 18K gold pieces DTC; comparable on solid-gold-only materials positioning and elevated DTC experience.
- Kimai: Kimai is a lab-grown fine jewelry DTC brand with sustainability credentials; overlapping approach to ethical diamonds and modern branding, but smaller scale.
Broad incumbents
- Blue Nile: Blue Nile is a large established omnichannel online fine jewelry retailer now under Signet; broader assortment including natural diamonds, but overlapping fine jewelry DTC motion and lab-grown expansion.
- Tiffany & Co. Tiffany & Co. is a global luxury jewelry incumbent now under LVMH; comparable on premium fine jewelry positioning and milestone gifting, broader product mix and far greater scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks5 records
Key highlights7 records
Customer concentration
Underclub social profiles
Digital presenceUnderclub compliance and trust
Trust signalCompliance1 record
Underclub financial estimates
Financial estimateRevenue estimate
Valuation estimate
Underclub leadership team
Management profileNumber of profiles
Profiles2 records
Underclub funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Underclub M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Underclub
What does Underclub do?
Underclub (operating as Petite Frites) operates a direct-to-consumer fine jewelry e-commerce brand built around lab-grown diamond jewelry crafted in solid 14K and 18K gold. The catalog spans rings, earrings, necklaces, and an interchangeable tennis bracelet line with hand-poured customizable enamel clasps; all pieces are custom-made to order with a 4-6 week production timeline and priced from approximately $2,200 to $20,000. The company sells exclusively through its own Shopify-based online storefront with no disclosed physical retail, wholesale, or third-party marketplace presence.
Is Underclub a public or private company?
Underclub is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Underclub founded?
Underclub was founded in 2014. It employs 1 to 10 people.
Where is Underclub based?
Underclub is headquartered in San Francisco, United States, in the North America region.
How does Underclub make money?
One revenue line is on record: direct Jewelry Sales.
Who are Underclub's main competitors?
Direct peers on record are Catbird, Mejuri, Stone and Strand, VRAI, Brilliant Earth and Grown Brilliance. Emerging players are Auvere and Kimai. Broad incumbents are Blue Nile and Tiffany & Co..
Does Underclub have an API?
No public API is recorded for Underclub.
What industry is Underclub in?
Underclub's product category is Fine Jewelry (Lab-Grown Diamond Jewelry). Its primary akta.pro industry code is CRAFAEAH, Jewelry, Watches & Luxury Omnichannel, with a secondary code of CRAKAGAA, Fine Jewelry Retail (Precious Metals & Gemstones). Its NAICS code is 458310 and its SIC code is 5944.